The act of "Marshmellowing"
Marshmellow - Marshmellowed - Marshmellowing

When a guy Gropes or Licks a girl's Ass or Boobs, or in fiction, Tails and Wings.
Tails and Wings are seen as "Erogenous zones" in fiction, meaning they are incredibly sensitive

the term "Marshmellowing someone" first had the definition of "Accidental Sex" or even "Unknown sex", it Originated in an anime called "To Love-Ru Darkness" where the Main Character was asleep, but was groping the girl's Tail, Boobs and ass, and went on to lick her tail.
The reason why its called "Marshmellowing" is because this whole time, the Main Character was Dreaming about marshmellows, how "soft & yummy" they were, of course, this was actually the girl's soft boobs, and presumably "yummy" tail.
Note: The girl was awake and enjoying herself, basically using him as a sex toy since he doesn't have the Courage to do sexual acts if awake
Sister: Damn that Rito, he's such a stupid Brother...
Father: What did he do now?
Sister: i was going to wake him up, only to find him Marshmellowing my classmate! Why was she even in his bed?
by Otaku Muffin July 26, 2020
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"All outta Viagra so I guess I'll be Marshmellowing it tonight"
by ThatGuyFloppyDick January 2, 2018
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A person from Mason Mi, addicted to dope, heroine meth crack... likely has ties to Detroit or Jackson. Generally has neck tattoos and could be missing teeth. They are white but speak fluent Ebonics.
Oh snaps did you see that Mason Marshmellow... it was dancing and shaking like a dog shitting razor blades”!
by Tickly Hairs March 12, 2020
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